The newer versions of C++ have introduced an auto keyword, which basically automatically sets the data type of variable. I can imagine it being useful in situations like these, where it increases coding speed and prevents unnecessary cluttering.

vector< pair <int, int> > foo;

for(auto i=foo.begin(),i!=foo.end(),++i)
{
    .....
}

However still it just seems as a small advantage. Also using it in place of int , string, etc just causes a lot of confusion, like dealing with variables in any weakly typed language, say Javascript.

var foo=13.67;

foo="it's a string"

Though using auto prevents assigning a string as an int, but using it everywhere makes debugging a nightmare

Say you shouldnt be doing this in C++

auto x="mewat1000";
auto y=5.33;

So what other useful feature it serves, which I seem to be missing out ?

Upd1 : One of my few posts which didnt get downvoted to oblivion. Rest of the posts disapper from recent blog activity list within 15-20 mins of posting them.